Ran gtp Study guides, Revision notes & Summaries

The process of protein sorting Correct Answer-1. transport through nuclear pores 2. Across membranes 3. Transport through vesicles Signal Sequences Correct Answer-Direct a protein Transport to the nucleus Correct Answer-- nuclear pores - ~30kDa can go through by diffusion - unstructured protein loops fill it Nuclear Localization Signal (NLS) Correct Answer-A short amino acid sequence that marks a protein for delivery to the nucleus. drives nuclear transport Correct Answer-GTP hyd...

BIO 353 - Cell Biology Spring 2019 Exam 2 (100 points) Version A This is a closed-book exam. Collaboration, or the use of books, notes, or handouts, is not allowed. Please turn off and put away all cell phones, pagers, music players, and other electronic devices. The exam consists of 50 multiple-choice questions. The questions are worth 2 points each, for a total of 100 points. Select the best answer to each question and enter your answer on a Scantron form. Be sure to indicate on the Sc...

BIO 120 3rd Exam: Intracellular Protein Sorting and Maintenance of Cell Compartmentalization Compartmentalization - Due to network inside the cell Eukaryotic Cell Compartment Assembly of organelle depends on protein transported to it Highly regulated, specific and targeted Intracellular Compartment Nucleus continuous in cytosol (topologically continuous) o Molecules can move from one place to another without crossing the membrance Secretory and endocytic network o Vesicles, endoso...

NLS correct answers nuclear localization signal - import INTO nucleus NES correct answers nuclear export signal - export out of nucleus On the mitochondria, plastids, and chloroplasts, where are the signal sequences always localized? correct answers N-terminus (beginning of the protein) Signal Sequence for Peroxisomes correct answers -Ser-Lys-Leu-COO (SSKL) Nuclear Import Receptors (Importins) bind to... correct answers Nuclear localization signals (NLS) and Nuclear pore complex (NPC...

BIO 353 - Cell Biology Spring 2019 Exam 2 (100 points) Version A This is a closed-book exam. Collaboration, or the use of books, notes, or handouts, is not allowed. Please turn off and put away all cell phones, pagers, music players, and other electronic devices. The exam consists of 50 multiple- choice questions. The questions are worth 2 points each, for a total of 100 points. Select the best answer to each question and enter your answer on a Scantron form. Be sure to indicate on the Scantron ...

What are the 3 different branches of life? - answer-1) Bacteria 2) Archaea 3) Eukaryotes What are the similarities between bacteria, archaea, and eukaryotes? - answer-1) Basic Biochemistry 2) Genetic code 3) Membrane ATPase 4) Ribosome What are the similarities between Bacteria and Archaea? - answer-1) No nucleus or organelles 2) Coupled transcription and translation What are the similarities between Archaea and Eukaryotes? - answer-Similar machinery for handling information (e.g...

Describe what would happen to the nuclear export process if RAN GAP was present on both sides of nuclear membrane - Answer Ran would be in the GDP form inside the nucleus. Nuclear export would cease because exportin would not be able to bind RAN-GTP and thus not bind and export cargo. You have identified a sequence that you believe acts as a nuclear localization signal. Describe an experiment that you could do (and the results of that experiment) to show: That your sequence is necessary...

During Drosophila development, sex-lethal and transformer are a. miRNAs b. siRNAs c. involved in RNA editing d. splicing regulatory factors e. transcription factors - answer-d. splicing regulatory factors The consensus sequence for poly(A) addition is a. G/C upstream of the poly(A) tail addition site. b. AAUAAA. c. TATAAA d. a and b e. none of the above - answer-b. AAUAAA. Which of the following statements is true? a. ATP powered pumps allow movement in the direction o...

Learning Outcomes - - Distinguish between the roles of GEF, GAP and Ran in nuclear transport - Propose how structures of α and β importins inform how cargo is transported

BIO 353 - Cell Biology Spring 2019 Exam 2 (100 points) Version A Part 1: Membrane Structure and Function 1. Which ONE of the following is a function of the plasma membrane? a. Breaks down lipids, carbohydrates, and proteins from foods b. Stores water, salt, proteins, and carbohydrates c. Keeps the cell wall in place d. Regulates which materials enter and leave the cell 2. Which ONE of the following is TRUE regarding cell membranes? a. Cell membranes are...